From Google Adsense help: How can I make a custom channel into an ad placement? When you make a custom channel into an ad placement that's targetable by advertisers, they will see your ad placement among the available places on which to place their ads. You can make a custom channel into an ad placement by following these steps: 1. Log into your account at http://www.google.com/adsense 2. Under the AdSense Setup tab, visit the Channels page. 3. Under the AdSense for content subtab, make sure you've selected custom channels. 4. Click the radio button next to the channel you'd like to make targetable, then click the corresponding 'edit settings' link. 5. Click the checkbox marked Show this channel to advertisers as an ad placement and enter a description for your channel. Keep in mind that advertisers will see the name and description, so you want to provide something accurate and informative that will represent your site well. 6. Click 'Save channel'. Keep in mind that if you have a custom channel that spans multiple sites, advertisers will see it split up into multiple custom channels by site. Also, be aware that should you choose to edit the name of the channel in the future, you will lose any existing advertiser bids for that channel. https://google.com/adsense/support/bin/answer.py?answer=47413
Thanks for the post. As soon as I start another adwords campaign I'll be sure to include channels. Thank You